Electrical therapeutic appliance



Oct. 12, 1937. c. s. sLUTZ ET A1.

ELECTRICAL THERAPEUTIC APPLIANCE Filed April 28, 1954 INVENToRs, dr/es 5 'f 1 ATTORNEY Patented oet. 12, 1937 2,095,678

UNITED STATES PATENT OFFICE ELECTRICAL THERAPEUTIC APPLIANCE Charles S. Slutz and Herman Kellett, Los Angeles, Calif.

Application April 28, 1934, Serial No. 722,946 1 claim. (ci. 21a-21) This invention relates to improvements in therform of the instrument completely assembled mal therapeutic devices and more especially to and with the heat unit in position.

the heating elements thereof. f Fig. l is a cross-section thereof drawn to a Among the objects of this invention are: To greatly enlarged scale. 5 provide an internally heated therapeutic device In general, it will be observed that the instru- 5 of very small cross section for such beneficial ment is for insertion Within the body, or a memeffects as high temperatures can produce when ber thereof, and while in position the temperaintroduced into the human or other living body, ture is raised to such a degree as may be desired and to provide a reliable electric heating unit for such therapeutic effects as devices of this adapted for enclosure within such small dimencharacter are intended to produce. While the 10 sions; to provide a novel form of electric heattemperature may be controlled up to some maxing unit adapted for any purpose, especially in a imum value, no control devices are shown, as they constricted space; t0 provide a Complete strucform no part of this invention.4 ture, including such therapeutic appliance with Fig. l shows a slender metal tube E closed at l5 heating arrangement and having suitable inone end, the other end being attached to a hollow 15 sulated passages for conducting im'res leading to member I1 which has an increasing diameter. the heat unit. An insulating member A closes the larger diam- Other objects will appear as this description eter end of member I'I. Contact or socket memproceeds. bers I4 and I5 extend through'member A, spaced We are aware that appliances of somewhat apart and projecting from both ends of member '2o similar form and intended to fulfill the same A as shown. The heating element extends purposes have been devised and that, broadly, throughout the length of the metallic tube E and the general idea of introduction of heat into the a distance into member Il lessthan the length human body for certain therapeutic reactions is Aof the open space in this latter member. This not, per se, novel. But all such devices known ,element comprises a flat strip B of insulating 25 to us have certain unsatisfactory features, proand heat resisting material, as mica, having a ceeding principally from attempts to use wellplurality of longitudinal rows of spaced holes I2 known forms of electrical heating units, inside through it, through which heating wire D is laced very small tubes or containers, which types of back and forth as shown in the various figures.

heating units are not adapted for such reduction The heat unit shown in Figs., 1 and 3 has two 30 in size compared with the quantity of heat rerows of spaced holes I2. Heating Wire D begins quired for the purposes indicated. Our form of near the inner end, wire 8 joining S to terminal heat unit and the instrument produced by its I4, being attached thereto by screw 20. This use are novel so far as now known to us. wire D passes from the rear of member B through With the foregoing and other objects in view, the first hole I2 to the front side of member B, 35 the invention consists in the novel and useful then is stretched to lie flat against the front formation, construction, interrelation, and comface of member B until the wire reaches the next bination of parts, members and features, as well Succeeding hOle l2, through Which it paSSeS t0 as mode and methods of use thereof, and steps the rear of member B and is then drawn taut and performances taken and had, all as hereinagainst the rear side of the flat strip B until the 40 after described, shown in the drawing and finally neXt hOle l2 iS reached, through WhiCh the Wire pointed out in the claim. D passes back to the front face of the strip B,

In the drawing: and so on, until the last hole of the row is Fig. 1 is a longitudinal section through one reached. After passing through it, the wire form of the instrument, completely assembled, passes through the end hole common to both 45 showing the general form of the heat unit. rows of holes, then through the end hole of the Fig. 2 is a cross-section thereof on line 2-2 of next row, and is similarly laced back to the start- Fig. 1 drawn to a greatly increased scale. ing end of the lacing, the end of the wire D being Fig. 3 is a greatly enlarged fragmentary detail Connected to wire I0, attached by screw ZI to of the heating element, showing a side elevation. terminal I5. An edgewise view of this laced wire 50 Fig. 4 is a sectional edge view of a heat eleheating unit is indicated in Fig. 4 with a shorter ment, supported at one end by a tubular member. strip B.

Fig. 5 is a fragmentary detail of the tubular The strip B has a width such that it must be support. forced or pushed into the tube E, and is held Fig. 6 is a longitudinal section of a second in position by friction against the walls of tube E. 55

' The form of appliance', shown in Figs. 6 and V7,Y uses the same form of heaterV as described ex; l cept that its width is greater to it Vinto the larger:

diameter of tube E shown.` This unit, there-- fore, has a greater number of rowsof holes than that used in the smaller diameter `device,as in-:v dicated. As before described, the heati'ngrwir'eY D connects with wire 9 fastened to terminal 14" by screw 20, and passes through a comparatively long bore in member H, at one end whereof vmetal tube E is attached. The ,length of heated tube is shorter than that shown in Fig. l and the heating element has a corresponding length. The insulating strip, through which the heating Wire is laced, .fits diametrally across the tube E' and requires some appropriate V:force to make it enter the tube. As before explained, it cannot move f acially toward the wall of the tube-.E as it cannot occupy any position in the tube except diametral. However, asa secondary holding means, the tube G of .insulating material, extends through the bore of tubular member H andV projects beyond e Y from the outer endl of H. A diametral pair of slots 22 is formed in the outwardly projecting end of tube-G, which accommodates one end ofthe flat `memberB and thus provides an end support for member B.

Connecting wire 9 leads to one end ofi heating WirefD, and wire IU leads to the'opposite end of wire D, these two wires passing through tube G. A' at :stripV of non-conducting material lies between wires v9 andl IU and extendsy through tube G and projects a considerable distancefinto the inner space hollowed out of the entry end of member' H, which is'bo'red to" receive plug A through which terminals-l@ and -l5 pass.' Metal tubeliv is attached to member H, which may be of any desired substance, as metal, hard rubber, bre, or vother suitablefmaterial. If member H isan insulating material, insulating tube G is omitted, supporting` slot 22 being made in the end of the separating strip. Kand being identical with the slot shown in Figs. 4 andw5, into which, the neighboring end of the memberY B is tightly fittedl The.' details of theV appliance shown in become looseand Vthe'expansion from Vpoint is negligible. Y

Having described our invention in connectionV Fig. 6 are obvious from the above description and the drawing. y

It will be observed that the heating wire of the heating element herein disclosed is' securely anchored by passing through holesv or lacing, and that by fixing the distance betweenconsecutive holes at some comparatively short distance, the

change in length of any element between twoV holes can never be suiiicient to permit appreciable divergence 'of the wire -from a straight line between successive holes. Also, by lacing the Vvvire through holes in the supporting member,

members, so that in no manner can the heat Wire with illustrative embodiments, forms, proportions and arrangement of parts, it will be understood that many variants thereof are possible to those skilled inY the art, and our invention, in its broader aspects, is not limited to the specic construction'herein described and shown, as changes in the sizes, proportions, congurations, arrangements, assemblage, interaction, juxtaposition and mechanical relations, as well as additions, omissions, substitutions, combinations and alterations of iormsparts, members and features, may be made Without departing from the broad spirit of this invention. 1

VHaving thus described our invention, we claim anddesireto secure by Letters Patent:

A therapeutic device adapted for vintroduction into and imparting heat to the interior of the body, comprising a hollow-metal-heat-imparting portion, a heater means therein, a non-conducting elongation' of said metal heating portionfor manipulation of and for increasing the depth of insertion ofthe heating portion beyond the Vlength i thereof, saidY heating means `comprising an electrical resistance mounted on a comparatively thin supporting member, the dimensions whereof are limited withinthe hollow space of saidV heat-,im-

partingportion, a-sleeve passingfaxially through "each pointA of support is xed reliably. and does Inot ,depend on anchoring Vwith added parts or point to said non-conducting elongation member, and Y wires passing throughY said sleeve to, and connecting Withthe heater means, and means Vfor mounting'saidV heating means within said heat imparting portion comprising an axial extension of said sleeve beyond length oisaid non-conducting portionV and providing diametral notches-,in said sleeve extension to Vreceive an end of said thin support.V y Y Y l CHARLES S. SLUTZ. HERMAN KELLETT. 

